mirror of
https://github.com/matrix-construct/construct
synced 2024-11-17 23:40:57 +01:00
549 lines
14 KiB
C++
549 lines
14 KiB
C++
// The Construct
|
|
//
|
|
// Copyright (C) The Construct Developers, Authors & Contributors
|
|
// Copyright (C) 2016-2020 Jason Volk <jason@zemos.net>
|
|
//
|
|
// Permission to use, copy, modify, and/or distribute this software for any
|
|
// purpose with or without fee is hereby granted, provided that the above
|
|
// copyright notice and this permission notice is present in all copies. The
|
|
// full license for this software is available in the LICENSE file.
|
|
|
|
#include <RB_INC_SYS_MMAN_H
|
|
#include <RB_INC_JEMALLOC_H
|
|
#include "db.h"
|
|
|
|
#ifndef IRCD_DB_HAS_ALLOCATOR
|
|
#warning "Consider upgrading to rocksdb 5.18+ for improved memory management."
|
|
#endif
|
|
|
|
#if defined(IRCD_ALLOCATOR_USE_JEMALLOC) && defined(HAVE_JEMALLOC_H)
|
|
#define IRCD_DB_USE_JEMALLOC
|
|
#else
|
|
#warning "Consider building with jemalloc for improved memory management."
|
|
#endif
|
|
|
|
//
|
|
// database::allocator
|
|
//
|
|
|
|
#ifdef IRCD_DB_HAS_ALLOCATOR
|
|
|
|
namespace ircd::db
|
|
{
|
|
#ifdef IRCD_DB_USE_JEMALLOC
|
|
static void *cache_arena_handle_alloc(extent_hooks_t *, void *, size_t, size_t, bool *, bool *, uint) noexcept;
|
|
static bool cache_arena_handle_dalloc(extent_hooks_t *, void *, size_t, bool, uint) noexcept;
|
|
static void cache_arena_handle_destroy(extent_hooks_t *, void *, size_t, bool, uint) noexcept;
|
|
static bool cache_arena_handle_commit(extent_hooks_t *, void *, size_t, size_t, size_t, uint) noexcept;
|
|
static bool cache_arena_handle_decommit(extent_hooks_t *, void *, size_t, size_t, size_t, uint) noexcept;
|
|
static bool cache_arena_handle_purge_lazy(extent_hooks_t *, void *, size_t, size_t, size_t, uint) noexcept;
|
|
static bool cache_arena_handle_purge_forced(extent_hooks_t *, void *, size_t, size_t, size_t, uint) noexcept;
|
|
static bool cache_arena_handle_split(extent_hooks_t *, void *, size_t, size_t, size_t, bool, uint) noexcept;
|
|
static bool cache_arena_handle_merge(extent_hooks_t *, void *, size_t, void *, size_t, bool, uint) noexcept;
|
|
thread_local extent_hooks_t *their_cache_arena_hooks, cache_arena_hooks;
|
|
#endif
|
|
}
|
|
|
|
decltype(ircd::db::database::allocator::ALIGN_DEFAULT)
|
|
ircd::db::database::allocator::ALIGN_DEFAULT
|
|
{
|
|
#if defined(__AVX512F__)
|
|
64
|
|
#elif defined(__AVX__)
|
|
32
|
|
#elif defined(__SSE__)
|
|
16
|
|
#else
|
|
sizeof(void *)
|
|
#endif
|
|
};
|
|
|
|
decltype(ircd::db::database::allocator::mlock_limit)
|
|
ircd::db::database::allocator::mlock_limit
|
|
{
|
|
ircd::allocator::rlimit_memlock()
|
|
};
|
|
|
|
decltype(ircd::db::database::allocator::mlock_enabled)
|
|
ircd::db::database::allocator::mlock_enabled
|
|
{
|
|
mlock_limit == -1UL
|
|
|
|
// mlock2() not supported by valgrind
|
|
&& !vg::active
|
|
};
|
|
|
|
decltype(ircd::db::database::allocator::mlock_current)
|
|
ircd::db::database::allocator::mlock_current;
|
|
|
|
/// Handle to a jemalloc arena when non-zero. Used as the base arena for all
|
|
/// cache allocators.
|
|
decltype(ircd::db::database::allocator::cache_arena)
|
|
ircd::db::database::allocator::cache_arena;
|
|
|
|
void
|
|
ircd::db::database::allocator::init()
|
|
{
|
|
#ifdef IRCD_DB_USE_JEMALLOC
|
|
cache_arena = ircd::allocator::get<unsigned>("arenas.create");
|
|
|
|
char extent_hooks_keybuf[32];
|
|
const string_view cache_arena_hooks_key{fmt::sprintf
|
|
{
|
|
extent_hooks_keybuf, "arena.%u.extent_hooks", cache_arena
|
|
}};
|
|
|
|
cache_arena_hooks.alloc = cache_arena_handle_alloc;
|
|
cache_arena_hooks.dalloc = cache_arena_handle_dalloc;
|
|
cache_arena_hooks.destroy = cache_arena_handle_destroy;
|
|
cache_arena_hooks.commit = cache_arena_handle_commit;
|
|
cache_arena_hooks.decommit = cache_arena_handle_decommit;
|
|
cache_arena_hooks.purge_lazy = cache_arena_handle_purge_lazy;
|
|
cache_arena_hooks.purge_forced = cache_arena_handle_purge_forced;
|
|
cache_arena_hooks.split = cache_arena_handle_split;
|
|
cache_arena_hooks.merge = cache_arena_handle_merge;
|
|
ircd::allocator::set(cache_arena_hooks_key, &cache_arena_hooks, their_cache_arena_hooks);
|
|
assert(their_cache_arena_hooks);
|
|
#endif
|
|
}
|
|
|
|
void
|
|
ircd::db::database::allocator::fini()
|
|
noexcept
|
|
{
|
|
#ifdef IRCD_DB_USE_JEMALLOC
|
|
if(likely(cache_arena != 0))
|
|
{
|
|
char keybuf[64];
|
|
ircd::allocator::get<void>(string_view(fmt::sprintf
|
|
{
|
|
keybuf, "arena.%u.reset", cache_arena
|
|
}));
|
|
|
|
ircd::allocator::get<void>(string_view(fmt::sprintf
|
|
{
|
|
keybuf, "arena.%u.destroy", cache_arena
|
|
}));
|
|
}
|
|
#endif
|
|
}
|
|
|
|
#ifdef IRCD_DB_USE_JEMALLOC
|
|
void *
|
|
ircd::db::cache_arena_handle_alloc(extent_hooks_t *const hooks,
|
|
void *const new_addr,
|
|
size_t size,
|
|
size_t alignment,
|
|
bool *const zero,
|
|
bool *const commit,
|
|
unsigned arena_ind)
|
|
noexcept
|
|
{
|
|
assert(their_cache_arena_hooks);
|
|
const auto &their_hooks(*their_cache_arena_hooks);
|
|
|
|
#ifdef RB_DEBUG_DB_ENV
|
|
assert(zero);
|
|
assert(commit);
|
|
log::debug
|
|
{
|
|
log, "cache arena:%u alloc addr:%p size:%zu align:%zu z:%b c:%b ind:%u",
|
|
database::allocator::cache_arena,
|
|
new_addr,
|
|
size,
|
|
alignment,
|
|
*zero,
|
|
*commit,
|
|
arena_ind,
|
|
};
|
|
#endif
|
|
|
|
void *const ret
|
|
{
|
|
their_hooks.alloc(hooks, new_addr, size, alignment, zero, commit, arena_ind)
|
|
};
|
|
|
|
// This feature is only enabled when RLIMIT_MEMLOCK is unlimited. We don't
|
|
// want to deal with any limit at all.
|
|
#if defined(HAVE_MLOCK2) && defined(MLOCK_ONFAULT)
|
|
if(database::allocator::mlock_enabled)
|
|
{
|
|
syscall(::mlock2, ret, size, MLOCK_ONFAULT);
|
|
database::allocator::mlock_current += size;
|
|
}
|
|
#endif
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
#ifdef IRCD_DB_USE_JEMALLOC
|
|
bool
|
|
ircd::db::cache_arena_handle_dalloc(extent_hooks_t *hooks,
|
|
void *const ptr,
|
|
size_t size,
|
|
bool committed,
|
|
uint arena_ind)
|
|
noexcept
|
|
{
|
|
assert(their_cache_arena_hooks);
|
|
const auto &their_hooks(*their_cache_arena_hooks);
|
|
|
|
#ifdef RB_DEBUG_DB_ENV
|
|
log::debug
|
|
{
|
|
log, "cache arena:%u dalloc addr:%p size:%zu align:%zu z:%b c:%b ind:%u",
|
|
database::allocator::cache_arena,
|
|
ptr,
|
|
size,
|
|
committed,
|
|
arena_ind,
|
|
};
|
|
#endif
|
|
|
|
const bool ret
|
|
{
|
|
their_hooks.dalloc(hooks, ptr, size, committed, arena_ind)
|
|
};
|
|
|
|
#if defined(HAVE_MLOCK2)
|
|
if(database::allocator::mlock_current && !ret)
|
|
{
|
|
syscall(::munlock, ptr, size);
|
|
assert(database::allocator::mlock_current >= size);
|
|
database::allocator::mlock_current -= size;
|
|
}
|
|
#endif
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
#ifdef IRCD_DB_USE_JEMALLOC
|
|
void
|
|
ircd::db::cache_arena_handle_destroy(extent_hooks_t *hooks,
|
|
void *const ptr,
|
|
size_t size,
|
|
bool committed,
|
|
uint arena_ind)
|
|
noexcept
|
|
{
|
|
assert(their_cache_arena_hooks);
|
|
const auto &their_hooks(*their_cache_arena_hooks);
|
|
|
|
#ifdef RB_DEBUG_DB_ENV
|
|
log::debug
|
|
{
|
|
log, "cache arena:%u destroy addr:%p size:%zu align:%zu z:%b c:%b ind:%u",
|
|
database::allocator::cache_arena,
|
|
ptr,
|
|
size,
|
|
committed,
|
|
arena_ind,
|
|
};
|
|
#endif
|
|
|
|
#if defined(HAVE_MLOCK2)
|
|
if(database::allocator::mlock_current)
|
|
{
|
|
syscall(::munlock, ptr, size);
|
|
assert(database::allocator::mlock_current >= size);
|
|
database::allocator::mlock_current -= size;
|
|
}
|
|
#endif
|
|
|
|
return their_hooks.destroy(hooks, ptr, size, committed, arena_ind);
|
|
}
|
|
#endif
|
|
|
|
#ifdef IRCD_DB_USE_JEMALLOC
|
|
bool
|
|
ircd::db::cache_arena_handle_commit(extent_hooks_t *const hooks,
|
|
void *const ptr,
|
|
size_t size,
|
|
size_t offset,
|
|
size_t length,
|
|
uint arena_ind)
|
|
noexcept
|
|
{
|
|
assert(their_cache_arena_hooks);
|
|
const auto &their_hooks(*their_cache_arena_hooks);
|
|
|
|
#ifdef RB_DEBUG_DB_ENV
|
|
log::debug
|
|
{
|
|
log, "cache arena:%u commit addr:%p size:%zu offset:%zu length:%zu ind:%u",
|
|
database::allocator::cache_arena,
|
|
ptr,
|
|
size,
|
|
offset,
|
|
length,
|
|
arena_ind,
|
|
};
|
|
#endif
|
|
|
|
return their_hooks.commit(hooks, ptr, size, offset, length, arena_ind);
|
|
}
|
|
#endif
|
|
|
|
#ifdef IRCD_DB_USE_JEMALLOC
|
|
bool
|
|
ircd::db::cache_arena_handle_decommit(extent_hooks_t *const hooks,
|
|
void *const ptr,
|
|
size_t size,
|
|
size_t offset,
|
|
size_t length,
|
|
uint arena_ind)
|
|
noexcept
|
|
{
|
|
assert(their_cache_arena_hooks);
|
|
const auto &their_hooks(*their_cache_arena_hooks);
|
|
|
|
#ifdef RB_DEBUG_DB_ENV
|
|
log::debug
|
|
{
|
|
log, "cache arena:%u decommit addr:%p size:%zu offset:%zu length:%zu ind:%u",
|
|
database::allocator::cache_arena,
|
|
ptr,
|
|
size,
|
|
offset,
|
|
length,
|
|
arena_ind,
|
|
};
|
|
#endif
|
|
|
|
return their_hooks.decommit(hooks, ptr, size, offset, length, arena_ind);
|
|
}
|
|
#endif
|
|
|
|
#ifdef IRCD_DB_USE_JEMALLOC
|
|
bool
|
|
ircd::db::cache_arena_handle_purge_lazy(extent_hooks_t *const hooks,
|
|
void *const ptr,
|
|
size_t size,
|
|
size_t offset,
|
|
size_t length,
|
|
uint arena_ind)
|
|
noexcept
|
|
{
|
|
assert(their_cache_arena_hooks);
|
|
const auto &their_hooks(*their_cache_arena_hooks);
|
|
|
|
#ifdef RB_DEBUG_DB_ENV
|
|
log::debug
|
|
{
|
|
log, "cache arena:%u purge lazy addr:%p size:%zu offset:%zu length:%zu ind:%u",
|
|
database::allocator::cache_arena,
|
|
ptr,
|
|
size,
|
|
offset,
|
|
length,
|
|
arena_ind,
|
|
};
|
|
#endif
|
|
|
|
return their_hooks.purge_lazy(hooks, ptr, size, offset, length, arena_ind);
|
|
}
|
|
#endif
|
|
|
|
#ifdef IRCD_DB_USE_JEMALLOC
|
|
bool
|
|
ircd::db::cache_arena_handle_purge_forced(extent_hooks_t *const hooks,
|
|
void *const ptr,
|
|
size_t size,
|
|
size_t offset,
|
|
size_t length,
|
|
uint arena_ind)
|
|
noexcept
|
|
{
|
|
assert(their_cache_arena_hooks);
|
|
const auto &their_hooks(*their_cache_arena_hooks);
|
|
|
|
#ifdef RB_DEBUG_DB_ENV
|
|
log::debug
|
|
{
|
|
log, "cache arena:%u purge forced addr:%p size:%zu offset:%zu length:%zu ind:%u",
|
|
database::allocator::cache_arena,
|
|
ptr,
|
|
size,
|
|
offset,
|
|
length,
|
|
arena_ind,
|
|
};
|
|
#endif
|
|
|
|
return their_hooks.purge_forced(hooks, ptr, size, offset, length, arena_ind);
|
|
}
|
|
#endif
|
|
|
|
#ifdef IRCD_DB_USE_JEMALLOC
|
|
bool
|
|
ircd::db::cache_arena_handle_split(extent_hooks_t *const hooks,
|
|
void *const ptr,
|
|
size_t size,
|
|
size_t size_a,
|
|
size_t size_b,
|
|
bool committed,
|
|
uint arena_ind)
|
|
noexcept
|
|
{
|
|
assert(their_cache_arena_hooks);
|
|
const auto &their_hooks(*their_cache_arena_hooks);
|
|
|
|
#ifdef RB_DEBUG_DB_ENV
|
|
log::debug
|
|
{
|
|
log, "cache arena:%u split addr:%p size:%zu size_a:%zu size_b:%zu committed:%b ind:%u",
|
|
database::allocator::cache_arena,
|
|
ptr,
|
|
size,
|
|
size_a,
|
|
size_b,
|
|
committed,
|
|
arena_ind,
|
|
};
|
|
#endif
|
|
|
|
return their_hooks.split(hooks, ptr, size, size_a, size_b, committed, arena_ind);
|
|
}
|
|
#endif
|
|
|
|
#ifdef IRCD_DB_USE_JEMALLOC
|
|
bool
|
|
ircd::db::cache_arena_handle_merge(extent_hooks_t *const hooks,
|
|
void *const addr_a,
|
|
size_t size_a,
|
|
void *const addr_b,
|
|
size_t size_b,
|
|
bool committed,
|
|
uint arena_ind)
|
|
noexcept
|
|
{
|
|
assert(their_cache_arena_hooks);
|
|
const auto &their_hooks(*their_cache_arena_hooks);
|
|
|
|
#ifdef RB_DEBUG_DB_ENV
|
|
log::debug
|
|
{
|
|
log, "cache arena:%u merge a[addr:%p size:%zu] b[addr:%p size:%zu] committed:%b ind:%u",
|
|
database::allocator::cache_arena,
|
|
addr_a,
|
|
size_a,
|
|
addr_b,
|
|
size_b,
|
|
committed,
|
|
arena_ind,
|
|
};
|
|
#endif
|
|
|
|
return their_hooks.merge(hooks, addr_a, size_a, addr_b, size_b, committed, arena_ind);
|
|
}
|
|
#endif
|
|
|
|
//
|
|
// allocator::allocator
|
|
//
|
|
|
|
ircd::db::database::allocator::allocator(database *const &d,
|
|
database::column *const &c,
|
|
const unsigned &arena,
|
|
const size_t &alignment)
|
|
:d{d}
|
|
,c{c}
|
|
,alignment{alignment}
|
|
,arena{arena}
|
|
,arena_flags
|
|
{
|
|
0
|
|
#ifdef IRCD_DB_USE_JEMALLOC
|
|
| MALLOCX_ARENA(this->arena)
|
|
| MALLOCX_ALIGN(this->alignment)
|
|
| MALLOCX_TCACHE_NONE
|
|
#endif
|
|
}
|
|
{
|
|
assert(is_powerof2(alignment));
|
|
}
|
|
|
|
ircd::db::database::allocator::~allocator()
|
|
noexcept
|
|
{
|
|
}
|
|
|
|
size_t
|
|
ircd::db::database::allocator::UsableSize(void *const ptr,
|
|
size_t size)
|
|
const noexcept
|
|
{
|
|
const size_t ret
|
|
{
|
|
#ifdef IRCD_DB_USE_JEMALLOC
|
|
sallocx(ptr, arena_flags)
|
|
#else
|
|
size % alignment != 0?
|
|
size + (alignment - (size % alignment)):
|
|
size
|
|
#endif
|
|
};
|
|
|
|
#ifndef IRCD_DB_USE_JEMALLOC
|
|
assert(ret % alignment == 0);
|
|
assert(alignment % sizeof(void *) == 0);
|
|
#endif
|
|
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
ircd::db::database::allocator::Deallocate(void *const ptr)
|
|
noexcept
|
|
{
|
|
#ifdef IRCD_DB_USE_JEMALLOC
|
|
dallocx(ptr, arena_flags);
|
|
#else
|
|
std::free(ptr);
|
|
#endif
|
|
}
|
|
|
|
void *
|
|
ircd::db::database::allocator::Allocate(size_t size)
|
|
noexcept
|
|
{
|
|
assert(size > 0UL);
|
|
assert(size < 256_GiB);
|
|
|
|
const auto ptr
|
|
{
|
|
#ifdef IRCD_DB_USE_JEMALLOC
|
|
mallocx(size, arena_flags)
|
|
#else
|
|
ircd::allocator::aligned_alloc(alignment, size).release()
|
|
#endif
|
|
};
|
|
|
|
#ifdef RB_DEBUG_DB_ENV
|
|
assert(d);
|
|
log::debug
|
|
{
|
|
log, "[%s]'%s' allocate:%zu alignment:%zu %p",
|
|
db::name(*d),
|
|
c? string_view(db::name(*c)): string_view{},
|
|
size,
|
|
alignment,
|
|
ptr,
|
|
};
|
|
#endif
|
|
|
|
return ptr;
|
|
}
|
|
|
|
const char *
|
|
ircd::db::database::allocator::Name()
|
|
const noexcept
|
|
{
|
|
return c? db::name(*c).c_str():
|
|
d? db::name(*d).c_str():
|
|
"unaffiliated";
|
|
}
|
|
|
|
#endif IRCD_DB_HAS_ALLOCATOR
|